> > d_invalidate allowed a non-directory mountpoint to be invalidated,
> > which is bad, since the mountpoint becomes unreachable.
> >
> > I know it's racy wrt attaching/detaching mount, but AFAICS so is
> > everything else that unhashes the dentry. This seems to be an
> > oversight when splitting out vfsmount_lock from dcache_lock. To be
> > fixed.
>
> NAK. That's a wrong way to deal with the problem and it's much older
> than vfsmount_lock or dcache_lock (and affects directories too).
Sorry?
Directories are not invalidated if they have any other reference (like
a mount, or any subdirectories which may have mounts).
So how does it affect directories?
Miklos
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